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<h1 class="topictitle1">关于SLA</h1>
<div><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001607691460_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p450712339156">SLA（Service Level Agreement）是一组可配置的数据保护策略，策略中定义了数据保护和副本保留的规则。将这些策略关联至受保护环境，以实现对特定受保护环境的保护。</p>
<p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001607691460_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p0553222467">为满足企业对各类受保护环境不同的数据保护诉求，<span id="ActiveDirectory-000521__tdsql_gud_060_text12502183914312">OceanProtect</span>支持由用户自定义SLA。</p>
<div class="section" id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001607691460_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_section1969174516230"><h4 class="sectiontitle">自定义SLA</h4><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p118482029286">用户可针对备份任务、复制任务、归档任务自定义SLA。SLA中可定义任务的执行频率、时间窗口、副本保留时长等基本参数以及其他适配各类受保护资源的高级参数。</p>
<p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p1186264517237">各类任务的SLA说明如<a href="#ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_table171521524193513">表1</a>所示。</p>

<div class="tablenoborder"><a name="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_table171521524193513"></a><a name="tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_table171521524193513"></a><table cellpadding="4" cellspacing="0" summary="" id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_table171521524193513" frame="border" border="1" rules="all"><caption><b>表1 </b>自定义SLA</caption><colgroup><col style="width:19.75%"><col style="width:80.25%"></colgroup><thead align="left"><tr id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_row615222414352"><th align="left" class="cellrowborder" valign="top" width="19.75%" id="mcps1.3.3.4.2.3.1.1"><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p5152182416356">SLA</p>
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<th align="left" class="cellrowborder" valign="top" width="80.25%" id="mcps1.3.3.4.2.3.1.2"><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p7152162483518">说明</p>
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<tbody><tr id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_row7152102483518"><td class="cellrowborder" valign="top" width="19.75%" headers="mcps1.3.3.4.2.3.1.1 "><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p14152132413510">备份SLA</p>
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<td class="cellrowborder" valign="top" width="80.25%" headers="mcps1.3.3.4.2.3.1.2 "><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p2015222473514">定义备份任务的执行频率、备份副本保留时长等参数。</p>
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<tr id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_row61521124173515"><td class="cellrowborder" valign="top" width="19.75%" headers="mcps1.3.3.4.2.3.1.1 "><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p71523242356">复制SLA</p>
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<td class="cellrowborder" valign="top" width="80.25%" headers="mcps1.3.3.4.2.3.1.2 "><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p1315215248355">指定备份副本复制到目标集群，并定义复制任务执行频率、复制副本保留时长等参数。</p>
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<tr id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_row1615272463520"><td class="cellrowborder" valign="top" width="19.75%" headers="mcps1.3.3.4.2.3.1.1 "><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p5152102443511">归档SLA</p>
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<td class="cellrowborder" valign="top" width="80.25%" headers="mcps1.3.3.4.2.3.1.2 "><p id="ActiveDirectory-000521__tdsql_gud_060_zh-cn_topic_0000001839223149_zh-cn_topic_0000001188593208_zh-cn_topic_0000001170622238_p915252410357">指定备份副本或复制副本归档到归档存储（对象存储或磁带库），并定义归档任务执行频率、归档副本保留时长等参数。</p>
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<div class="parentlink"><strong>父主题：</strong> <a href="ActiveDirectory-00052.html">SLA</a></div>
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